Hardware Spec Index

Novexa PW-3421 Pro 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Novexa · SKU PW3421-PRO · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,130 (Power Supplies scale)
Category rank#41,335
Street price$49
Power650 W (rated)
Performance per dollar23.06
Released2020

Specifications

BrandNovexa
ModelNovexa PW-3421 Pro
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-9256 Ti 1300W 80 PLUS Titanium ATX Power Supply2,823$399Compare
Caldera PW-9920 XT 1000W 80 PLUS Titanium ATX 3.0 Power Supply2,234$249Compare
Caldera PW-1497 Core 850W 80 PLUS Gold ATX 3.0 Power Supply1,799$129Compare
Zephyra PW-6677 Edge 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,825$349Compare
Novexa PW-1331 Pro 1200W 80 PLUS Platinum ATX Power Supply2,024$199Compare
Novexa PW-8901 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply1,706$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-3421 Pro 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/89175767 (accessed 2026-10-19).